Grain-car door.



No. 7095247 Y. Patented sept'lfi, 1902. G. STIRRETT.

GRAIN CAR DOOR.

Application filed Sept. 13, 1901.)

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GEORGE STIRRETT, OF BRANDON, CANADA.

GRAIN-CAR DOOR.

SPECIFICATION forming part of Letters Patent No.

709,247, dated September 16, 1902.

Application filed September 13, 1901. Serial No. 75,313. (No model.)

i T at whom it may concern:

ject of my invention is to provide a fastening device for grain-car doors which shall not only be cheap in construction, but shall be so simple in operation that the most ignorant laborer could not fail to understand the method of unfastening the door; anditconsists,essentially, of a strip or tongue of suitable matei rial, a series of links pivotally connected at one of their ends to said strip or tongue and pivotally connected at their opposite ends to the door-post or the door, one of said links being extended to form a lever, said lever being adapted to force said tongue to suitably engage the door, and means being also provided for securing the said tongue in any desired position, and the various parts being otherwise constructed and arranged in detail, as hereinafter more particularly described.

Figure l is a sectional inside elevation of a door'of a grain-car to which my device has been attached Fig. 2 is a section through Fig. 1 on the line m x.

.In the drawings like letters of reference indicate corresponding parts in each figure.

A is the body of the inside door of a graincar.

a a are the right and leftdoor-posts, respectively. In the left door-post ct'a rabbet (1, is

cut extending from the bottom of the post up above the top of the door-body A.

B is a strip or tongue, which may be made of any suitable material, but preferably of metal for the sake of strength and durability. A plurality of links C are pivotally secured to the tongue B by means of rivets c, which pass through oneend of the links 0 and through the tongue B. The links 0 are pivotally connected at their opposite ends to the door-post a in proximity to the side of the rabbet a and by means of pivotal belts or rivets 0. One of the links 0 is extended to form a lever 0 and by raising or lowering this lever the links 0 are turned, and consequently the tongue B is advanced to fasten or secure the door-body or withdrawn to unfasten same.

D is a locking-bar which is pivotally hung at its upper end on the inside of the Wall of the car, the other end being allowed to swing freely. Notches or holes at are formed in a flange d in said locking-bar, and by inserting the end of the lever c in one of said notches or holes the tongue 13 may be secured in any desired position.

B is a secondary tongue or strip, which is secured to the tongue B by means of the pivotal rivets o. This tongue is preferably about half as wide as the tongue B.

a is a batten secured to one side of the door-body and adapted to abut the door-post when the door is in the closed position. The edge of the door-body extends slightly beyond the batten (L gand thus forms a shoulder,which, resting against the inside of the door-post, holds the door in position.

It will now be seen that when the lever c is raised the tongue B and the edges of the links 0 will be forced hard against the edge of the door-body and the tongue B will be brought in front of the edge of said door-body, and hence when the lever is in this position the door will be held firmly in place. To release the door, all that is required is to remove the end of the lever from the hole or notch in the locking-bar D and lower the lever, when the links 0 may be turned and the tongues B and B withdrawn.

The door may be secured to the inside of the car by means of a chain E and suitable staples e. A

F is a socket secured to the bottom portion of the door and in which a crowbar may be inserted to raise the door, as hereinafter explained.

G is the ordinary sliding door, which is closed over the inside door when the car is filled.

In unloading a car in which my device is used the door may be first forced up a little by a crowbar inserted in the socket F or by other means and the grain allowed to run out over the sill into a bin or other receptacle. When the pressure of grain against the door has thus been removed, the door may be taken off by lowering the lever 0 and thus YCO stand the method of opening them, and the result is that they are generally broken open and rendered unavailable for future use. My fastening device being extremely simple in construction, there can arise no such difficulties, as it is cheap to make and the method of unlocking may be understood by the most ignorant laborer.

It will be understood that I do not wish to limit myself to the use of my fastening device With a door of exact form shown and described, as it may be used to lock almost any door of substantially the same class as described.

What I claim as my invention is 1. The combination with the door-body and the door-posts, one of which has a rabbet therein, of a laterally-movable tongue, a series of links pivotally secured at one end to said tongue and at their opposite ends to said door-posts, one of said links being extended to form an operating-lever, and a secondary strip or tongue pivotally secured to said links, the edge of said auxiliary tongue being adapted to abut the edge of said door-body, and a locking-bar pivotally hung at one end upon the Wall of the caror the door-post as and for the purpose specified.

2. The combination with the door-body and of a laterally-movable tongue, a

door-posts,

clear of l plurality of links pivotally secured at one of their ends to said tongue and at their other ends to said door-posts, one of said links being extended to form a lever, a locking-bar pivoted to the wall of the car or the door-post, a flange thereon having notches therein adapted to receive the end of the lever as and for the purpose specified. a

3. The combination with the door-bodyand door-posts, of a laterally-movable tongue, a plurality of links pivotally secured at one of their ends to said tongue and at their other ends to said door-post, one of said links being extended to form a lever, and a lockingbar pivotally hung to the wall of the car and havinga flange formed on one side and notches or holes formed in said flange, as and for the purpose specified.

4. A fastening device for grain-car doors and the like comprising a fixed tongue securedtto the door-body and projecting slightly beyond one edge thereof, a laterally-movable tongue, a series of links pivotally connected at one of their ends to said laterally-movable tongue and at their other ends to the body of the door, a lever formedon the end of one of said links and means for holding said lever in any position to which it may be adjusted as and for the purpose specified.

Signed at the city of Brandon this 23d day of July, 1901. i

GEO. STIRRETT. 

